Circuit-breaker trip.



Patented June 18, l90l.

A. J. Punmron.

CIRCUIT BREAKER TRIP.

(Application filed m 9, 1900. v 2 Sheets-Shoot l.v

WMJJZJ: jaw/112a:- M. W. M" 7 m: noails' vnzm ca. mvrouwo. WASHKNGYON D c No. 676,849. Patented 1m l8, l90l.

, A. Jrrunmmu.

CIRCUIT BREAKER TRIP.

(Apphclhnn filed my 9, 1900) 2 sheets-sum 2.

(lo Iodel.)

Wzaauax- UNITED STATES PATENT OFF ARTHUR J. runm'ron, OF WATERBURY, CON ECTICUT.

[ CIRCUIT-BREAKER TRIP.

srncrrrcnrrrou forming part of Letters Patent No. erases, dated June is, 1901.

Application filed-May 9, 19 00.

. To all whom-it may concern.-

Be it known that I, -ARTHUR J. PURINTON, a citizen of the United States, residing at \Vaterbury,in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Circnit-l3reaker Trips, of which the following is a specificar tion. 8

This invention relates to an el'ectrictrip that is adapted 'to mechanically set in operation an electric-circuit breaker when a button of an emergency-circuit in which it' is connected i's pressedor when such a circuit is closed by the actionof any other. apparatus.

The object'of the invention is to provide a very simple electrically-operatedItrip that can be easily attachedto Ia switchboard in s such relation to a circuit-breaker that when the trip-lever is released it will cause the circuit-breaker'catoh-lever to move and release the contact-movingparts of the circuitbreaker. v v l The trip that is illustrated in the accompanying drawings as embodying the invention has a base supporting two magnets, the armatures of which are attached toa catch-lever. that is arranged to hold the tripflever with its operating-spring under tension until themagnets attract the armaturcs and cause the catch to releasethe trip.

Figure 1 of the views shows in plan a common magnetic blow-out circuit-breaker with one of the emergency-trips attached and also diagrammatically illustrating a safety and emergency system for .power plants. Fig. 2 shows, on a larger scale, a plan of the trip.

' Fig. 3 shows an edge View of the trip. Fig. 4

tion in the other end of this lever is'a threaded stud 8, having a head 9, by means of which Serial No. 16,024. (No model.)

it'may. be turned, and bearing alock-nnt 10, by which it may be fastened in position. A spring 11, having one end fastened in the eye -of the lug l2 and the other end fastened to a post 13, holds the lever, with the armature, away from the magnet-poles.

- The trip-lever 14 is pivoted upon a stud 15, projecting from a post 16, that extends outwardly frointhe'base. The end of this lever that is adjacent to the catch-lever is provided with a trip-stud 17, that is engaged by the catch-stud: 8. The otherend of the triplever extends between the magnet-coils and is fo'rcedfrom the standard 2 by a spring 18 on a stud 19, that projects from the standard I parallel with the magnets.

The magnetic blow-out circuit-breaker shown is one. of those which are in general use in electric-power stations.

' The base of the trip is attached to the switchboard adjacentto the circuit-breaker in such position that the end of the long armof the trip-lever projects into the path of the catch-armature 20 0f the circuit-breaker.

hen the catch-lever releases the trip-lever, the trip-sprin g causes the trip-lever to engage and oscillate the circuit-breaker catch-armatnre 20, and this so moves the catch 21 from the joint 22 that the spring 23 may draw the main-circuit-connecting contacts 2& from the main-circuit terminals 25 in the usual man ner. The trip-lever does not prevent the catch-armature of the circuit-breaker from being electrically operated by the main-line magnet 26 nor from being mechanically operated by the handle 27.

The trip-magnets may be connected with an electric circuit that may be closed by a push-button 28, placed at any desired locality inthe plant, or it may be connected with a circuit which is adapted to be closed by an engine, pulley, or shaft speed-limit 29 of the nature illustrated and described in patent of July 5,1898, No. 606,877, or it may be connected with a circuit whichis adapted to operate an emergency throttle-valve 30, similar to that of patent ofJanuary 30, 1 900, No. 642,257. The trip-magnets may also be connectedwith the circuit in such a system for stopping engines as is set forth in reissue patent of January 29, 1900, No. 11,804, which contains an enginestop 31 of the nature of that of pat'entof May 31, 1898, N0. 602;,840,

and a yacuum-breaker 32, like" that vshown in the said Reissue Patent N 0. 11,804, or in an entire emergency and safety system for shut ting downa power plant containing. all 0f. these apparatus, as indicated by the diagrani matical View, Fig.4. f r 1 Iclairnas-my invention" r v The combination with a circuit-breaker catch,'the spring for pulling the catchin' one direction and. the magnet for, attracting. the catch in the oppositedire'ction of a trip-lever engaging the circuit-breaker catch, a spring adapted to force the trip-leversc as to cause the circuit-breaker catch tc, n 1ove against'the pull "of its spring, a catch-lever, a spring adapted to hold the catch-leyer in engagement with the trip -}lever, an armature at' ta'ched tothe catch lever an'da magnet em ,c 1r bracing the trip-lever and arranged to attract thearma-tnre against the pull of the catchlever spring, substantially as specified. 1

Witnesses:

S. ALICE HUDSON, l ERNEST S, BENTON.

ARTHUR J. PURINTON. 

